package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    MongoTemplate mongoTemplate;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            //点赞需要登录
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "用户需要登录！");
        }
        //校验文章id不能为空     使用注解校验
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if (apBehaviorEntry == null) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID, "点赞行为对象为空！");
        }
        //校验点赞方式 只能是0 或 1   使用注解校验
        Short operation = dto.getOperation();//点赞方式
        if (operation != null) {
            // 2. 根据当前登录用户id查询行为实体对象
            ApLikesBehavior apLikesBehavior = mongoTemplate.findOne(
                    Query.query(Criteria.where("entryId")
                            .is(apBehaviorEntry.getId())
                            .and("articleId")
                            .is(dto.getArticleId()).and("type").is(apBehaviorEntry.getType())), ApLikesBehavior.class);
            // 3. 如果是点赞操作  判断是否已经点过赞
//            if (apLikesBehavior != null) {
//                CustException.cust(AppHttpCodeEnum.DATA_EXIST, "该文章已经点过赞了！");
//            }
            // 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
            apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(apBehaviorEntry.getId());
            apLikesBehavior.setArticleId(dto.getArticleId());
            apLikesBehavior.setCreatedTime(new Date());
            mongoTemplate.insert(apLikesBehavior);
        } else {
            // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
            mongoTemplate.remove(Query.query(Criteria.where("entryId")
                    .is(apBehaviorEntry.getId())
                    .and("articleId")
                    .is(dto.getArticleId()).and("type").is(apBehaviorEntry.getType())), ApLikesBehavior.class);
        }
        //发送点赞行为消息，用于文章行为汇总数量，更改文章热度
        NewBehaviorDTO newBehaviorDTO = new NewBehaviorDTO();
        newBehaviorDTO.setType(NewBehaviorDTO.BehaviorType.LIKES);
        newBehaviorDTO.setArticleId(dto.getArticleId());
        newBehaviorDTO.setAdd(dto.getOperation().intValue()==0?1:-1);
        rabbitTemplate.convertAndSend(
                HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE,
                JSON.toJSONString(newBehaviorDTO)
        );
        log.info("成功发送 点赞行为 消息内容：{}",newBehaviorDTO);
        return ResponseResult.okResult();
    }
}
